Pneumatic stacker.



'No. 721,243. PATENTED FEB. 24, 1903.

' J. K. SHARPE, JR.

- PNEUMATIC SIACKER.

APPLICATION FILED JUNB IB, 1902.

110 MODEL.

wmg aow J'seph KShhrpeJn, w 1a 7 r THE Nonms zrsns cu, Punm-umd.WASHINGTON. n. c.

A of the blast-fans in respect to the straw-cham- UNITED STAT PATENTOFFICE.

JOSEPH K. SHARPE, JR., OF INDIANAPOLIS, INDIANA, ASSIGNOR TO THE INDIANAMANUFACTURING COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF- WESTVIRGINIA.

PNEUMATIC STACKER.

SPECIFICATION forming part of Letters Patent No. 721,243, dated February24:, 1903.

Application filed June 13, 1902- Serial No. 111,449. (No model.)

To all whom it may concern:

Beit known that I, JOSEPH K. SHARPE, J r., a citizen of the UnitedStates, residing at Indianapolis, in the county of Marion and State ofIndiana, have invented certain new and useful Improvements in PneumaticStackers, of which the following is a specification.

My present invention is-an improvement upon that shown and described inmy application, Serial No. 76,876, filed September 28, 1901; and itconsists in a peculiar disposition ber constituting the base of .myimproved pneumatic stacker, whereby the frictional resistance of thestraw in passing through the chamber is much diminished.

Referring to the accompanying drawings, which are made a part hereof andon which similar reference characters indicate similar parts, Figure 1is a longitudinal vertical sectional view of the rear end of a separatorprovided with a pneumatic stacker embodying my present inventionas seenfrom the dotted line 1 1 in Fig 2; Fig. 2, a horizontal sectional viewthereof as seen when looking downwardly from the dotted line 2 2 in Fig.1; and Fig. 3, a rear elevation of the separator, showing the exteriorof the fan-casings of the pneumatic stacker and showing the extremelower end of the straw-chamber of the stacker cut in section as seenfrom the dotted line ,3 3 in Fig. 1.

This stacker in use is attached to the rear or straw-delivering end of athreshing-machine or separator, as S, as is common, and

is adapted to receive the straw as it comes from the straw-deliveryfloor thereof. It comprises a straw-chamber 10, into which the straw isfirst delivered from the separator, and a duct or trunk 11, leadingtherefrom to the point of final delivery, and two fans, one at each sideof the machine, each of which has a small air-duct leading up the baseof the straw-chamber of the stacker. These fans 12 are contained inhousings 13, as is usual, and the nozzles 15 of the air-ducts 14 leadingtherefrom are disposed at the lower and outer sides of thestraw-chamber, so that the blasts of air coming from said fans aredirected along the lower corners of the strawchamber and travel inconverging directions toward the center.

In the case of large separators especially I have found by experiencethat a single fan delivering at the bottom of a straw-chamber ofconsiderable size, such as I employ in my invention, lacks somewhat inefficiency on account of the tendency to drive the straw to the sides ofthe straw-chamber, so that its passage is retarded by friction with thechamber-walls, and this disadvantage I have overcome in the presentinstance by directing a blast of air along the lower corners of suchstraw-chamber instead of through the center thereof, as in theconstruction shown in my above-mentioned application. This,as will bereadily understood, tends to drive the straw away from theseconvergingsides instead of against them, and much facilitates the dischargethereof into the delivery trunk or duct, as the friction with the wallsis thus largely eliminated.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters-Patent, is.

1. The combination, with a threshing-machine, of a pneumatic stacker,comprising a straw-chamber one end whereof is fitted to. the upperportion of the rear end of the threshing-machine and covers the straw-dolivery opening therein, and the other end of which is reduced to thesize of the nextsection of the straw-delivery trunk or duct, and thesides whereof converge from one end to the other, a delivery trunk orduct connected to the smaller (and, two fans, suitable housingstherefor, and air-ducts leading tangentially from the peripheries ofsaid housings to the lower and outer sides of the straw- -chamber andadapted to discharge the air rear end whereof is connected to the upperportion of the adjacent end of the separator and covers thestraw-delivery opening therein, blast-producing means connected thereto,and two pipes leading thence to the outer and lower corners of the saidbase-section of the straw-stacker and having their ends arranged todischarge along paths formed by the bottom and sides of saidstraw-chamber, the blast being thus applied to the straw on the underand outer sides of the mass, between it and the horizontal and verticalwalls of the straw-chamber, substantially as shown and described.

3. The combination, with a threshing-machine, of a pneumatic stackercomprising a straw-chamber one end whereof is fitted and connected tothe upper portion of the rear end of the threshing-machine with itsfloor just below the straw-delivery floor of said machine and the sideswhereof converge from the point of attachment to the threshing-machineto the outer end thereof, a second ductsection flexibly connected tosaid outer end,-

two fans mounted on the framework below the lower side of thestraw-chamber, suitable housings therefor, air-ducts leading from saidhousings upwardly to just above the level of the straw-chamber floor andthence curved outwardly in a direction substantially parallel with saidfloor and also curved inwardly to a direction substantially parallelwith the sides of said chamber, the extreme ends or nozzles of saidair-ducts being located in the lower corners of said chamber, saidseveral parts being constructed, arranged and operating substantially asshown and described. In witness whereof I have hereunto set my hand andseal, at Indianapolis, Indiana, this 23d day of May, A. D. 1902.

JOSEPH K. SHARPE, JR. [L. s.]

Witnesses:

CHESTER BRADFORD, JAMES A. WALSH.

